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1.Safety Notice

5

Installation and Maintenance

WARNING

·

Installation should be performed by a professional. (Improper installation may cause water leakage, electrical

shock or fire.)

·

Install the unit according to the instruction given in this manual. (Incomplete installation may cause water

leakage, electrical shock or fire).

·

Be sure to use the supplied or specified installation parts. (Use of other parts may cause the unit to come to

lose, water leakage, electrical shock or fire).

·

Install the air conditioner on a solid base that can support the unit weight. (An inadequate base or incomplete

installation may cause injury in the event the unit falls off the base). 

·

Electrical work should be carried out in accordance with the installation manual and the local national electrical

wiring rules or code of practice. 
(Insufficient capacity or incomplete electrical work may cause electrical shock or fire). 

·

Be sure to use a dedicated power circuit. (Never use a power supply shared by another appliance).

·

For wiring,use a cable long enough to cover the entire distance.Do not use an extension

cord.

·

Do not put other loads on the power supply , use a dedicated power circuit. (Failure to do so may cause

abnormal heat, electric shock or fire).

·

Use the specified types of wires for electrical connections between the indoor and outdoor units. (Firmly clamp

the interconnecting wires so their terminals receive no external stresses).

·

Incomplete connections or clamping may cause terminal overheating or fire.

·

After connecting interconnecting and supply wiring be sure to shape the cables so that they do not put

undue force on the electrical covers or panels. (Install covers over the wires, incomplete cover installation may 
cause terminal overheating, electrical shock or fire).

·

When installing or relocating the system, be sure to keep the refrigerant circuit free from substances other

than the specified refrigerant  ,such as air. (Any presence of air or other foreign substance in the 
refrigerant circuit causes an abnormal pressure rise or rupture, resulting in injury). 

·

If any refrigerant has leaked out during the installation work, ventilate the room. (The refrigerant reduces a

toxic gas if exposed to flames).

·

After all installation is completed, check to make sure that no refrigerant is leaking out. (The refrigerant

produces a toxic gas if exposed to flames).

·

When carrying out piping connection, take care not to let air substances other than the specified refrigerant

go into refrigeration cycle. (Otherwise, it will cause lower capacity, abnormal high pressure in the 
refrigeration cycle, explosion and injury).

·

    Make sure that the installation has a proper earth connection. Do not earth the unit to a utility pipe, arrester, or
telephone earth. Incomplete earth may cause electrical shock. (A high surge current from lightning or other sources 
may cause damage to the air conditioner).

·

An earth leakage circuit breaker may be required depending on site condition to prevent electrical shock.

(Failure to do so may cause electrical shock).

·

Disconnect the power supply before completion of wiring, piping , or checking the unit.

·

When moving the indoor unit and outdoor unit , please be careful,do not make the outdoor unit incline over

45 degree. 

 sharp edge of the air conditioner

·

Installing the remote controller: Be sure that the length of the wire between the indoor unit and remote controller

is within 40 meters. 

Pay attention to the

 to avoid any injury.

·

Do not install the air conditioner in a place where there is danger of exposure to inflammable gas leakage. (If

the gas leaks and builds up around the unit, it may catch fire).

·

Establish drain piping according to the instructions of this manual. (Inadequate piping may cause flooding).

·

Tighten the flare nut according to the specified method such as with a torque wrench. (If the flare nut is

tightened too hard, the flare nut may crack after a long time and cause refrigerant leakage).

CAUTION

Summary of Contents for YAKN09BZNWEUH1

Page 1: ...0Hz T1 Cooling Only Model YAKN09BZNWEUH1 YAKN12BZNWEUH1 YEKN18BZNWEUH1 YEKN24BZNWEUH1 YEKN36BZNWEUH1 YEKN42BZMWEUH1 YGKN48BZMWEUH1 YGKN55BZMWEUH1 Model YAJN09BZNWETH1 YAJN12BZNWETH1 YEJN18BZNWETH1 YEJ...

Page 2: ...ditioner 2 Special Remarks 3 Troubleshooting 3 Diagram of Refrigerant Cycle Wiring 1 Refrigerant Flow Diagram 4 2 Electrical Wiring Diagram 4 Installation and Maintenance 1 Safety Notice 5 2 The Tools...

Page 3: ...not connect the grounding of this product to various kinds of air feeding ducts drain piping lightning protection facility as well as other piping lines to avoid receiving an electric shock and damag...

Page 4: ...lected The figures are based on the external views of the standard model Operation instruction will be further specified in remote controller s manual Please read it carefully before using this applia...

Page 5: ...er reducing heating performance When this happens a defrosting system of the air conditioner will operate At the same time the fan in the indoor unit stops or runs at a very low speed in some cases to...

Page 6: ...y valve Heat exchanger Liquid piping Heating cycle Cooling cycle INDOOR UNIT OUTDOOR UNIT Heat exchanger EEV Service valve Outdoor unit Outdoor unit Indoor unit Indoor unit Terminal Terminal Power sup...

Page 7: ...nces other than the specified refrigerant such as air Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise or rupture resulting in injury If any r...

Page 8: ...ter Hammer Churn drill Knife or wire stripper Tube expander Inner hexagon spanner Tape measure 3 1 The Initial Check When moving the unit during or after unpacking make sure to lift it by holding its...

Page 9: ...nit power supply wiring and transmission wiring must be kept at least 1 meter away from televisions and radio which prevents image interference and noise in those electrical appliances Noise may be ge...

Page 10: ...the thread locker on the suspension to prevent the nuts from loosening 1 During the installation please cover the unit with the plastic cloth to keep it clean 2 Make sure that the unit is installed le...

Page 11: ...The connection positions of the tube Fig 4 2 The pipe diameter The refrigerant gas pipe The refrigerant liquid pipe 2 As shown in Fig 4 3 screw up the nuts with 2 spanners Fig 4 3 Screw up the nut to...

Page 12: ...ould be insulated because condensation may form there and cause water leakage Drain piping passing indoors Drain sockets Referring the figure below insulate the drain socket and drain hose using the i...

Page 13: ...t The lid of the control box Fig 6 1 Remove the screws on the control box 11 Installation and Maintenance 6 Electrical Wiring When clamping the wiring use the included clamping material as shown in th...

Page 14: ...desired function code to rewrite the parameter values by pressing button and press button to confirm Press button to quit 1 2 3 4 5 V V V V V V V V M T M T M T If you still have any trouble please co...

Page 15: ...hat the wall and the supporting rack is strong enough to hold the weight of the appliance Release the set screws of the electric cover remove the electric cover if the valve cover is there either plea...

Page 16: ...e heat insulation effect Also be sure the condensed drain hose splits away from bundle and drips clear of the unit and the piping The two refrigerant tubes and electrical wire if local codes permit sh...

Page 17: ...e contact local technical service center of our company for further information Narrow pipe Hex wrench Wide pipe Service valve Bonnet of service valve Bonnet of narrow valve Bonnet of wide valve Indoo...

Page 18: ...ck Place the round crimp style terminals on the wires up to the covered part and secure in place When connecting the terminal block using a single core wire be sure to perform curing 3 When transmitti...

Page 19: ...nt possible harm to the environment or human health from uncontrolled waste disposal recycle it responsibly to promote the sustainable reuse of material resources To return your used device please use...

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